Unfortunately for the 23-year-old Davis, that number includes Officer Brian Delahanty of the Boston Police Department.

As part of his duties with the BPD’s Youth Violence Strike Force, Delahanty has been surreptitiously following Davis on Twitter, since the convicted felon is associated with H-Bloc, a gang operating from Boston’s Roxbury neighborhood. H-Bloc members are known to dress in silver and black clothing emblazoned with the Oakland Raiders logo.

Along with offers to sell pot and photos of some favorite meals, Davis’s Twitter feed includes such observations as “If tha pussy don't sound like mac n cheese when you hitting it…it ain't that grease” and “Bitches love sucking dick drunk I'll tell ya.” Davis, who uses the handle “DopeMan,” can be found on Twitter at @superfreakmaino.

Those messages, however, were not of interest to Delahanty. Instead, the cop alerted to a pair of recent Davis tweets that included photos showing him posing with a Smith & Wesson .44 caliber handgun and a Sig Sauer .380 caliber pistol. The photos were taken on consecutive days in February at a firing range in Salisbury, a town 45 miles north of Boston.

Davis is pictured above holding the Smith & Wesson, which was outfitted with an optical scope. He is seen at left holding two other guns at the Salisbury range.

Since Davis is a felon--he was convicted of illegal weapons and ammo possession in 2009--he is not allowed to possess a firearm (even one rented from a firing range). Alarmed that a gang member appeared to be trying to improve his marksmanship, Boston police contacted the Bureau of Alcohol, Tobacco, Firearms and Explosives.

In an affidavit filed today, a Boston detective cited Davis’s affiliation with the H-Bloc gang as reason for a federal magistrate to deny him bail. Davis’s trip to the firing range, the cop noted, was “intended to increase his firearm proficiency for illegal purposes rather than for any sporting or recreational reason.” (4 pages)